Trunk rounds forward excessively
Spine flexes instead of the hip hinging to deepen the stretch.
Overactive muscles
Erector spinaeHamstrings
Corrective work
Foam RollHamstrings↗StretchSeated glute stretch (chair pigeon)↗Spine flexes instead of the hip hinging to deepen the stretch.
Valgus on the standing leg while balancing in the stretch.